Table 1. Surveys of bees from different parts of the world that included data on abundance of all species collected.

No. specimens
No. species
No. specimens/
species
No. singletons
Proportion of singletonsa
Sampling duration
Area (ha)
Flower data
Location
Reference
Months
Days
Hoursb
List
No. spp.
-
333
-
-
-
-
182
-
-
Y
-

USA, UT, San Rafael Desert (scattered years, 1966-1993)
Griswold et al. (1998)c
15000
214
-
-
-
-
-
-
81,300
Y/N
all

USA, IL, Carlinville and surrounding areas
Robertson (1928)
8114
212
38.27
52
0.25
12
52
468.0
100.0
Y
all
Brazil, Ribeiaro Preto SP (gardens, abandoned area, University campus, w/o Meliponines)
Camargo and Mazucato (1984)
1904
169
11.27
68
0.40
12
52
408.0
2.1
N
all
Brazil, Viçosa
Cure et al. (1993)
4642
169
27.47
35
0.21
-
-
-
-
-
-
Ukraine, Carpathian Mts.
Osychnyuk (1967)
5241
168
31.20
26
0.15
12
-
-
>10,000
Y/N
all
USA, IL, Chicago area
Pearson (1933)
1906
167
11.41
49
0.29
12
43
150.0
107.0
N
all
Brazil, S.J. dos Pinhais PR (secondary grassland)
Bortoli and Laroca (1990)
4217
167
25.25
53
0.32
12
36
144.0
21.0
N
all
Brazil, S.J. dos Pinhais, PR (secondary grassland)
Sakagami et al. (1967)
2361
158
14.94
43
0.27
12
36
216.0
15.0
N
all
Brazil, Lapa, PR (field impacted by cattle grazing)
Barbola and Laroca (1993)
-
151
-
-
-
8
30
120.0
1.0
Y/N
all
USA, WY (shortgrass prairie)
Tepedino and Stanton (1981)
-
144
-
-
-
8
30
120.0
1.6
Y/N
all
USA, WY (shortgrass prairie)
Tepedino and Stanton (1981)
2996
145
20.66
23
0.16
12
90
-
7.7
Y/N
all
USA, MI, E.S. George Reserve (1972-1973)
Evans database, U. Michigan
1226
128
9.58
54
0.42
12
24
195.0
1.0
Y
all
Brazil, Uberlandia, MG (cerrado)
Carvalho and Bego (1996)
874
119
7.34
46
0.39
12
18
82.0
1.0
Y
all
Brazil, Ponte Nova (abandoned pasture near small forest)
Silveira et al. (1993)
712
98
7.27
33
0.34
6
26
75.0
1.4

all
Brazil, Viçosa
Cure et al. (1992)
634
90
7.04
28
0.31
-
-
-
-
Y
all
USA, MS, Hattiesburg
Michener (1947)
2430
89
27.30
16
0.18
6
24
96.0
-
Y
all (76)
Japan, eastern Hokkaido
Usui et al. (1976)
3744
85
44.05
14
0.16
6
25
92
9
-
all
Japan, Hokkaido Botanical Garden
Sakagami and Fukuda (1973)
2789
78
40.23
19
0.24
-
-
-
-
N
all
USA, MA, near Cambridge
Stubblefield et al. (1993)
3099
77
40.25
13
0.17
6
25
89
150
-
all
Japan, Hokkaido University
Sakagami and Fukuda (1973)
1045
55
19.00
11
0.20
5
18
56.5
35
N
all
Japan, eastern Hokkaido
Fukuda et al. (1973)
950
45
21.11
20
0.44
12
24
195.0
-
N
all
Brazil, S. Joao do Cariri, PB caatinga
Aguiar and Martins (1997)
848
24
35.33
3
0.13
-
-
115.0
-
N
all
Japan, eastern Hokkaido
Uehira et al. (1979)
417
22
18.95
6
0.27
4
-
-
290.0
Y/N
all
USA, CA, Anacapa Is.
Rust (1985)
211
13
16.23
3
0.23
-
-
-
-
-
-
Germany
Kratochwil (1988)
149
11
13.55
1
0.09
-
-
-
-
-
-
Japan, Ogasawara Is.
Kato (1992)
361
37
9.76
7
0.19
2
5
40.0
-
Y
1
USA, WY, Grand Tetons National Park
Tepedino and Stackhouse (1987)
560
25
22.40
6
0.24
4
6
72.0
1.0
Y
1
USA, AZ, Tucson (undisturbed Larrea stand, one plant)
Minckley and Cane (unpublished)
757
25
30.28
8
0.32
-
-
-
-
Y
1
Germany
Kratochwil (1988)
250
13
19.23
4
0.31
4
4
12.0
1.0
Y
1
USA, AZ, Tucson (undisturbed Larrea stand, one plant)
Minckley et al. (1999)
115
13
8.85
4
0.31
1
4
8.0
0.5
Y
1
USA, NE, Cherry Co. (Penstemon)
Lawson et al. (1989)
105
8
13.13
4
0.50
1
2
4.0
1.0
Y
1
USA, NE, Morrill Co. (Penstemon)
Lawson et al. (1989)
1959
54
36.28
12
0.22
1
2
37.5
-
Y
1
USA, NM, Hidalgo Co., near Rodeo
Hurd et al. (1980)
1095
41
26.71
12
0.29
1
2
25.0
-
Y
1
USA, NM, Hidalgo Co., near Animas
Hurd et al. (1980)
174
26
6.69
8
0.31
1
2
11.0
-
Y
1
USA, NM, Grant Co., near Silver City
Hurd et al. (1980)
211
23
9.17
8
0.35
1
1
6.0
-
Y
1
USA, AZ, Cochise Co., Benson
Hurd et al. (1980)
734
16
45.88
2
0.13
1
1
42.0
-
Y
1
USA, CA, Madera Co., Madera
Hurd et al. (1980)
1404
14
100.29
5
0.36
1
1
12.5
-
Y
1
USA, CA, San Joaquin Co., Escalon
Hurd et al. (1980)
677
12
56.42
4
0.33
1
1
7.0
-
Y
1
USA, CA, Kings Canyon, Corcoran
Hurd et al. (1980)
502
10
50.20
5
0.50
1
1
7.5
-
Y
1
USA, CA, Riverside Co., Indio
Hurd et al. (1980)
264
10
26.40
4
0.40
1
1
7.5
-
Y
1
USA, CA, Inyo Co., Bishop
Hurd et al. (1980)
1293
9
143.67
0
0.00
1
1
11.0
-
Y
1
USA, CA, Madera Co., Madera
Hurd et al. (1980)
703
9
78.11
1
0.11
1
1
9.0
-
Y
1
USA, CA, Madera Co., Madera
Hurd et al. (1980)
338
9
37.56
0
0.00
1
1
8.0
-
Y
1
USA, CA, Merced Co., Merced
Hurd et al. (1980)
82
24
3.42
13
0.54
1
3
0.5

N
1
USA, NY, Finger Lakes (cultivated site-CF)
MacKenzie and Eickwort (1996)
68
19
3.58
8
0.42
1
3
0.5

N
1
USA, NY, Finger Lakes (cultivated site-CP)
MacKenzie and Eickwort (1996)
51
17
3.00
6
0.35
1
3
0.5

N
1
USA, NY, Finger Lakes (natural site-NF)
MacKenzie and Eickwort (1996)
44
18
2.44
9
0.50
1
3
0.5

N
1
USA, NY, Finger Lakes (natural site-NS)
MacKenzie and Eickwort (1996)

a Proportion of singletons = IC.
b Hours represents the total collector hours.
c This study is included despite the lack of species abundances, which are available from the authors.